Curtain-fastener



E. S. CHURCH.

CURTAIN FASTENER.

APPLICATION FILED oc.23,19|s.

Patented June 10, 1919.

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f/QL MA 2% hisfiw EDMUND S. CHURCH, OF CHICAGO, ILLINOIS.

CURTAIN-FASTENER.

Specification of Letters Patent.

Patented June 10, 1919.

Application filed December 23, 191B. Ser1a1lll'o.267,918.

To all whom it may concern Be it known that I, EDMUND S. CHURGH,\ a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in (lurtainFas tenors, of which the following is a full, clear, and exact description.

The invention relates to curtain-fasteners and its primary object is to provide a studandsocket or snap -fastener in which the members are positively locked against relative tippi'n or axial movement to prevent accidental disconnection. This object is attained by locking the stud and socket in such manner that only an initial relative movement in the plane of the socket or transversely to the axis of the stud will release thevmembers for disconnection by relative tipping.

The invention consists in the several novel features hereinafter set. forth and more particularly defined by claims at the conclusion thereof. I

In the drawings: Figure 1 is an elevation,

, the stud and socket being separated. Fig.

2 is a back view of the socket. Fig. 3 1s a front view of the socket. Fi 4 is a view showing the stud and socket 100 red together, the socket being in section and the stud in elevation. Fig. 5 is a detail of the back plate of the socket. Fig. 6 is a back view of the front plate of the socket.

The fastener comprises a stud 7 adapted to be fastened in any suitable manner to one of the elements 8 to be secured together and a socket 9 adapted to be secured to the other of said elements, exemplified by a curtain 10. The stud has a tapered or rounded outer end or head 11, a neck 12 formed by grooving the stud, and a base 13. The back of the head 11 forms a square shoulder 14 which is adapted to positively lock the engaging devices on the socket against outward or axial movement. The socket comprises a front plate 15 which has its margin flanged, as at 16, to form a chamber 17, a back plate 18, to which the front plate is secured by tongues 19, which pass through holes 20 and are clenched against the back of plate 18. The socket is secured to the curtain by tongues 21 which are on the back plate and pass through the curtain and holes in a washer 22 and are clenched against the back of the washer. A hole 23 which is adapted to receive the stud, is formed in the socket, curtain and washer.

The chamber 17 in the socket contains a spring 24 which has a bar 25 ada ted to normally lie in back of the shoulc er l4 and serve as one member and an oppositely disposed fixed member 26 also adapted to enga e the back of said shoulder for positively loc ting the socket against outward or axial movement. The fixed member 26 is struck u from and integral with back plate 18. '1 10. hole 23 in washer 22 is formed so that it will abut against the shank of the stud and limit the upward movement of the socket relatively to the stud when they are locked together, as shown in Fig. 4. The back of member 26 is inclined to slip over the head of the stud when forcing the socket. over the stud. The bar 25 serves as a resilient member and the curved abutment 26 as a rigid locking member, both adapted to positively lock the socket against either axial or tipping or outward movement.

The resilient bar 25, while acting as such a locking member, permits suiiicient longitudinal or downward movement of the socket or transverse to the axis of the stud, to per mit the fixed member 26 to clear or pass under the shoulder 14 so that after the socket has been thus shifted, as shown by dotted lines in Fig. 4, it can be tilted off the stud.

In placing the socket on the stud, the curved head of the stud will, as the stud and socket are forced together, force the resilient member 25 upwardly to permit the head to pass between the locking members and then the resilient member will snap into locking position in back of shoulder 14 and force the fixed member 26 into and hold it in looking position so that the stud and socket will be locked together against separation by relative tilting, because both of the oppositely disposed members are positively locked against outward movement by the square shoulder 14. To release the curtain, it is necessary to initially pull it downwardly in its plane and against the force of resilient member 25 until the fixed member will clear the shoulder 14 and then the lower portion of the socket can be tilted outwardly until the resilient member can pass over the shoulder.

The invention exemplifies a snap fastener in which the stud and socket are normally and positively locked against release by tipping so that there can be no accidental release of the curtain, and in which release can be effected only after an initial relative movement of the stud and socket in the plane of the curtain or longitudinally of the socket to release the rigid locking member.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the ap pended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a snap fastener, the combination of a stud, a rigid socket, and locking means therebetween adapted to positively prevent separation by relative tilting and comprising a resilient member Wh1ch permits an initial relative movement in a plane transverse to the axis of the stud.

2. In a snap fastener, the combination of a stud, a rigid socket, and locking means therebetween adapted to positively prevent separation by relative tilting and comprising a resilient member which ermits an initial relative movement in a p ane trans verse to the axis of the stud, and a member rigid on the socket.

3. In a snap fastener, the combination of,

a stud, a rigid socket, and locking means therebetween adapted to positively prevent separation by relative tilting and comprising a resilient member which permits an initial relative movement in a plane transverse to the axis of the stud, and a rigid member on the socket which can be tilted off the stud after said initial movement has caused it to clear the stud.

4. In a snap fastener, the combination of a stud having a shoulder formed to positively prevent axial movement, a socket adapted to receive said stud, and oppositely disposed resilient and rigid locking members, both adapted to positively prevent axial separation of the socket and the stud, the resilient member permitting initial .movement only in a plane transverse to the axis of the stud.

5. In a snap fastener, the combination of a stud having a tapered outer end and a substantially square shoulder at the back of said end, a socket adapted to receive said stud, a rigid locking member in the socket adapted to engage and to be positively locked by said shoulder, and a resilient member in the socket, oppositely disposed to the rigid member and adapted to likewise engage and be locked by said shoulder, the members permitting only longitudinal movement of the socket until the rigid mem ber has cleared the shoulder, the socket being separable from the stud only by tilting after said longitudinal movement.

EDMUND s. CHURCH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

